Category Archives: electricity

Conservation Of Energy In The Spring – Even Dominion gets into the act

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Dominion is an energy company so this is actually sort of progressive. I say sort of, because if they offered real programs for solar water heaters, solar photovoltaics and geothermal at the residential level they would be on the right path. But one baby step after another I guess.

http://e-conserve.blogspot.com/2009/03/spring-cleaning-add-energy-efficiency.html

Exploring ways to save energy, money and the environment

Join Dominion in sharing ideas about how to save energy and money while helping the environment. Learn more about energy conservation from our Energy Experts.

Monday, March 16, 2009

Spring Cleaning? Add energy efficiency to the “to do” list and save money.

‘Tis the season for the chore called Spring Cleaning. For me, I have to motivate myself to get ready to clean (not my favorite household chore). But this year I am thinking about it positively, thinking of all the energy I will save.

There are some chores you may want to add to your cleaning list that will help you save energy and money leading into the cooling season.

  • Dust the lamps and lightbulbs. The dust and grime on the bulb makes it dirty, reducing the amount of light it gives off.
  • Clean your air filter. Replacing air conditioning filters allows for the system to run efficiently.
  • Clean the air return vents. Make sure drapes and furniture aren’t blocking the vents.
  • Vacuum the refrigerator coils. The dust builds up, causing the fridge to run less efficiently.
  • Thoroughly dust electronics and then unplug them when not in use.
  • Scrub the tub and then install low flow showerheads.

For tips on how to save year round, you can visit our website at http://www.dom.com/.

Posted by Alison@Dom

Courtney@dom Energy Conservation Analyst

Stephen@dom Energy Conservation Analyst

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Go there and read. More next week.

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Energy Saving Tips For The Spring – The comments are a tad more interesting than the piece

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That comment is not meant to be offensive. I have seen these “tips for the (fill in a season)” before and I think people’s responses to them are fascinating.

http://www.eereblogs.energy.gov/energysavers/post/Spring-into-Energy-Savings.aspx

Spring into Energy Savings

clock April 14, 2009 06:00

No winter lasts forever; no spring skips its turn.
– Hal Borland

In my part of the country, winter seems to hang on an interminably long time. So I always look forward to the first signs of spring with unbridled glee. At the first glimpse of a cherry blossom, the winter boots are banished to the back of the closet and the sandals are put to work in earnest.

But while spring may give the perfect excuse to hang up the winter coat, the advent of spring does not mean that we can pack away thoughts of energy efficiency with our wool sweaters. Last winter, Jennifer Carter gave us a number of great energy efficiency tips for winter. Now that spring’s milder temperatures are upon us and it’s time to consider what energy efficiency means in warmer weather, the Office of Energy Efficiency and Renewable Energy’s new Stay Cool, Save Money website is a great resource for efficiency tips. The site has a wealth of no-cost and low-cost advice that can help you lighten your energy load without lightening your wallet. And, for those ready to make a more long-term investment in energy savings, the site has resources to help you make well-informed decisions to get the most bang for your energy buck.

The following tips provide a taste of the energy saving-strategies that the Web site has to offer

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There’s a taste. Go there and read. More tomorrow.

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More Spring Energy Tips – But the freeze just put an end to our nice weather

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We were having a great weird spring with temperatures consistently above 60 degrees. Then last night we got 4 hours of freezing and tonight we get 5 more. Coral Bells, Pawpaws and some bushes took a hit. Still, here are more Spring tips.

As a couple, my husband and I were naturals to become part of the green movement: We already used mass transportation, spent considerable time camping in national parks and recycled obsessively (rinsing foil and all). But it was the birth of our daughter that deepened our commitment to making easy household changes — the idea of leaving the world better for her and her generation.

Here’s how we created a greener home:

1. To Market, to Market
Our vast collection of reusable market bags started with two cute canvas totes I’d purchased at a thrift store. Now we have about 14 totes, which we grab as readily as we grab our keys on our way out the door for groceries. We’re keeping plastic bags out of landfills, and as a bonus, the totes’ sturdy shoulder straps make schlepping goods up the stairs to our front door less back-breaking.

2. What Good Things Grow
Through my husband’s involvement with the local community garden, we learned about a massive composting initiative, which takes neighborhood compostable waste and transforms it into dark, nutrient-rich dirt. Now, after dinner, we take a bowl of our unwanted onionskins, carrot peels and eggshells and leave them in the bin at the garden gate. Less waste in our kitchen means that our garbage bags go further too.

 

3. Seeing the Light
When compact fluorescent lightbulbs (CFL) first became available (and the U.S. government announced that if every home replaced one regular bulb with a CFL bulb, we could prevent 9 billion pounds of greenhouse gas emissions per year), it was a no-brainer. We made the switch, socket by socket. But we were concerned when we learned that the mercury in these bulbs made proper disposal an imperative. Fortunately, Home Depot has signed on as a nationwide recycler, so all we have to do is to bring our used bulbs there and look for the big orange bin just for CFLs.

4. Second Lives
Living on a tight budget through college is probably what ratcheted up my resourcefulness. As a result, I’m always looking for the next use of an item before throwing it away. The pink sheets that are now too scratchy for sleeping? With a little time and effort, they became a doll, with eyes made from old buttons and hair from my abandoned knitting-project yarn. The old album covers collecting dust on the shelves? A couple of ready-made frames transformed them into instant wall art.

5. Off With It!
Hot out? Line dry your clothes instead of using the dryer. Not actively on the computer? Power down and unplug it. Bored? Reach for that huge pile of been-meaning-to-read books instead of grabbing the remote. There are hundreds of alternatives to the old electronic habits. And once you’re committed to changing your habits, it’s easy not to look bac

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More tomorrow.

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Utilities Go Trenchless – And cut costs

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This is great news for the safety of the industry.

http://trenchlessinternational.com/news/advances_in_utility_location/004594/

Advances in utility location

Jo Parker

Trenchless International — October 2009

Advances in underground utility location could mean enormous savings – in economic, environmental and social terms. Here Jo Parker from Watershed Associates discusses some of the latest technological research and development emerging from the UK.

There are over four million kilometres of buried assets in the UK. At present, utilities make information about their buried assets available in a variety of methods including via websites, through telephone or written application, with a paper plan sent in response, or by marking out the location onsite. Collating these records can be a time consuming exercise and often the information has to be transferred by hand to another CAD system.

Even when a utility company uses the latest techniques to map its new assets, information on legacy services – which may have been installed decades earlier by a predecessor organisation – may be inaccurate or even non-existent. Pipes in older cities may be over 150 years old. Poor mapping techniques used at the time of installation and the practice of recording the pipe’s location relative to a physical feature that may no longer exist means the exact location of many of today’s networks are unknown. Although current surface location and detection techniques have improved in recent years, they are still of limited use, being both unreliable and slow to operate. As a result the only way to reliably identify the accurate position of any buried service is to excavate a trial hole.

Economic disruption

The direct cost of trenching and reinstatement work of UK highways for utilities is in excess of £1.5 billion per year. Part of this is attributable to holes excavated in the wrong location and damage to third party assets, which is estimated to be as high as £150 million. Although direct costs are high they are significantly lower than the societal costs, such as delays to road users, disruption to businesses and environmental damage which may be as high as £5 billion per year.

Article continues below…

 

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Go there and read boatloads. More tomorrow.

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What If We All Had The Energy Storage And The Efficiency Of The Astronaut’s Devices

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While this post is all about cars and utility storage systems, the title for this blog is a lift from a question the author asks halfway through the article.

http://www.intelligentutility.com/article/11/06/power-storage-advances-unexpected-sources-renewable-energy-storage-kicked-high-gear

Power Storage Advances from Unexpected Sources: Renewable Energy Storage Kicked Into High Gear

James Cahalin | Jun 02, 2011

What do you think has a greater impact on society, a Bugatti Veyron Super Sport or a Tesla Roadster? Both have spectacular performance reviews, with the Super Sport setting top speed records. Both will turn heads driving down any road or even through any parking lot in the world. Both are truly engineering marvels.

However, the engineering accomplishments behind both vehicles will be dwarfed by the advances Tesla has made with its power storage devices. Let’s take a look at a few numbers for both vehicles (see table).

These numbers are astonishing. As a “car guy,” the opportunity to drive either of these vehicles would be amazing. However, as an energy professional, these numbers are even more astonishing.

Amazing Head Output

The Bugatti Veyron Super Sport was designed and built for one purpose — to set a new speed record. It is also what I like to refer to as a “straight-line car.” What I mean by that is simple: Even with that much horsepower and amazing technological advances, there are cars (and some cost under $100,000) that can beat the Super Sport around a race track.

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Go there and read. More tomorrow.

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Solar Flare Will Make Our Wires Sing – And maybe the power going out

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The first time we got hit by one of these bad boys that we know of in the 1870s, the telegraph operators here in the US had to disconnect their batteries to prevent the batteries from catching fire. Yet the telegraph system still worked without their power. But for the major utility companies (eg. telecoms, electrical, water, natural gas etc.) this is a big deal and that is what we have been talking about here.

http://news.yahoo.com/earth-braces-biggest-space-storm-five-years-180341589.html

A pair of scorching explosions on the Sun’s surface is sparking the biggest radiation and geomagnetic storm the Earth has experienced in five years, space weather experts said Wednesday.

The full brunt of the storm is expected to hit Earth early Thursday US time and last through Friday, potentially disrupting power grids, GPS systems, satellites, and forcing airplanes to change their routes around the polar regions.

“Space weather has gotten very interesting over the past 24 hours,” said Joseph Kunches, a space weather scientist with the National Oceanic and Atmospheric Administration (NOAA).

The fuss began late Sunday at an active region on the Sun known as 1429, with a big solar flare that was associated with a burst of solar wind and plasma known as a coronal mass ejection that hurtled in Earth’s direction at some four million miles per hour (6.4 million kilometers per hour).

Another solar flare and CME followed at 0024 GMT on March 7, setting off a strong geomagnetic and solar radiation storm, both at level three on a five-step scale.

NASA said the second flare — classified in the potent X class — was one of the largest of this cycle known as the solar minimum which began in early 2007, and fell in just behind slightly stronger one which erupted in August.

“The current increase in the number of X-class flares is part of the sun’s normal 11-year solar cycle, during which activity on the sun ramps up to solar maximum, which is expected to peak in late 2013,” the US space agency said.

The solar flares alone caused brief high frequency radio blackouts that have now passed, according to NOAA.

But the ensuing space storm will likely give nighttime viewers in Central Asia a prime look at the aurora borealis, or northern lights, on Thursday night, in addition to possibly garbling some of Earthlings’ most prized gadgets, Kunches said.

The storm is likely “the strongest one since December 2006,” Kunches said, noting, however, that the Earth experienced a stronger radio blackout last August.

“But en masse, if you put it all together with the geomagnetic effects and the solar radiation effects, I would put it on par with one at the end of the last solar cycle which was over five years ago.”

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Go there and read. Google for additional solar flare information. More tomorrow.

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Wind And Solar Cheaper Than Coal – Or so says Michigan

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Since we are in a Utility state of mind this week, the PSC of Michigan just released this report according to the folks at AWEA.

http://www.awea.org/blog/index.cfm?customel_dataPageID_1699=14546

Mich. Public Service Commission: Renewable energy cheaper than coal

Posted: 2012-03-02 Tom Gray

We often run “Fact check” articles on this blog when fossil-fuel-funded “experts” exaggerate the cost of electricity generated with wind power (for a particularly bald-faced recent example, see Fact check: American Enterprise Institute epic FAIL on study of wind costs, Feb. 29), but perhaps this one should be titled “Reality check.”

Reality: the Michigan Public Service Commission (PSC) recently issued a report that finds that electricity generated from renewable energy sources, at an average cost of $91 per megawatt-hour (9.1 cents/kilowatt-hour), is almost one-third cheaper than the cost of electricity from a new coal-fired power plant ($133 per MWh, or 13.3 cents/kWh).

Further, the report notes, “The actual cost of renewable energy contracts submitted to the Commission to date shows a downward pricing trend.  This was the case as of the filing of this report in February of 2011 and continues to be the case, as the two most recent contracts approved by the Commission for new wind capacity have levelized costs of $61-$64 per MWh.  This is significantly lower than the levelized costs of the first wind contracts submitted in 2009.” (emphasis added)

The report is one in a series required annually from the Commission to the state legislature, reporting on the impact of the state’s Renewable Energy Standard (RES), which requires utilities to obtain 10 percent of the electricity they provide from renewable energy sources by 2015.

Other highlights from the report:

– While utilities are allowed to charge customers extra for renewable energy, customers are also seeing savings due to wind.  Said the Commission, “While … surcharges have an impact on electric rates, there are also economic benefits attributable to an increase in renewable energy generation sources and improved energy efficiency. As noted in previous sections, the cost of energy generated by renewable sources continues to decline and is cheaper than new coal-fired generation.

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Go there and read. More tomorrow.

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Utility Sized Storage For Electricity Has Never Been A Problem

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The alledged lack of utility size storage has always been the coal and gas minions excuse to the public for distrusting alternative forms of energy. It also has never been true. One of the easiest storage system was proposed in the 50s. That would be pumping water up hill to a reserve and then at night letting it run down hill through a turbine. This creates a complete energy loop that could in theory last forever. Another proposed in the 70s was to heat molten salts and then extract the heat later. The one that always excited me the most was actually proposed in several different places and times; and was actually proposed to capture lightening. All it is is a giant battery in the ground which uses the earth as an insulator. But now that the tech guys are getting into the act, I am sure the utility companies will just throw up their hands and toss in the towel.

http://cleantechnica.com/2012/02/18/new-flow-battery-does-that-cheap-energy-storage-thing/

 

New “Flow” Battery Does that Cheap Energy Storage Thing

February 18, 2012 By

Scientists on the lookout for utility-scale, high efficiency batteries are developing new “flow”systems that that store energy more effectively than lead-acid or lithium-ion batteries, but there’s a catch. The flow batteries in operation now are about the size of a house and they cost more than the equivalent in lithium-ion batteries. The race is on to find smaller, cheaper alternatives and researchers at Sandia National Laboratories believe that they are on to the solution, which is, in fact, a solution of liquid salts called MetILs.

The limits of lithium-ion for wind and solar

Lithium-ion batteries have been the gold standard of energy storage solutions for a long time, but they fall short when it comes to the utility-scale systems needed to keep up with new high efficiency wind turbines and advanced solar technology. The cost of lithium-ion batteries is one factor. Another is their relatively short lifespan, compared to flow batteries. According to Sandia chemist Travis Anderson, a flow battery can withstand about 14,000 cycles, which adds up to about 20 years of energy storage.

Flow battery basics

Flow batteries work by converting chemical energy into electricity. Stephanie Hobby of Sandia explains it thusly:

“A flow battery pumps a solution of free-floating charged metal ions, dissolved in an electrolyte — substance with free-floating ions that conducts electricity — from an external tank through an electrochemical cell to convert chemical energy into electricity.”

Flow batteries charge and discharge rapidly, and they have a long lifespan, but all is not perfect in flow battery land. The most promising systems so far use zinc bromine and vanadium, both of which are “moderately toxic” according to Hobby. In addition, the price of vanadium can spike wildly on the open market.

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Go there and read. More tomorrow.

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Off Grid Living – Site may be inactive but it has good content

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Sometimes I find sites that appear inactive but I post them anyway because, like yesterday, they have something of interest. This is another one of those.

http://lifeoffthegrid.info/?p=57

Off Grid Living-You Can Do It Too

January 21, 2009

More and more people are realizing that you can still enjoy modern amenities while enjoying the independence of off grid living.  Being off the grid means being exactly that, off the grid.  No power lines, no electric bills, and being free of utility grid demands, not to mention their ever-rising rates.  Off grid living is environmentally friendly and cost effective and it is an option available to almost any one owning a home.

The principles of off grid living may be applied to any home in the world, even those currently tied to the grid.  From solar panels, hydro power and windmills, there is growing curiosity in off grid living and breaking free from fossil fuel burning power plants.  The technologies have advanced and the costs have dropped greatly.
Even do-it-yourselfers can take leaps into off grid living with many kits, resources and manuals available for instruction.  As energy demands increase globally, those living off grid can rest easy knowing their own energy costs are diminishing.

The idea of off grid living can be scary to some who believe they will have to give up some of their most prized possessions and electronic gadgets to achieve such freedom.  This is very far from the truth.  Off grid living is simply about learning to moderate your use of electricity.  It can be as simple as turning off lights that are not really in use.  Purchasing appliances that don’t use energy when not in use (like clocks on microwaves and stoves).  Learning to unplug, not just turn off.  Things like computers and printers, well anything with the little green light that is always on, these items are stealing precious energy and adding to your bill.  Wanting to become part of the off grid living adventure, doesn’t always mean giving up everything, sometimes it just means getting smarter about the things you have.

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Go there and read. More next week.

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Off The Grid Store – I am posting a hunk of his blog

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This blog for this store has one chunk dated January 25th of 2012 and the first post listed as January 13. There is nothing more. So I do not know much about the store or the guy claiming to be Darin. It hasn’t been open long. According to a phto shoot caption they opened in early December 2011. I never endorse anything I have not actually tried and I have never ordered anything from this site. So buyer bewarier. As a man with a new business I am sure that he is too busy to blog and I disagree with his probable ideology as well. However new small businesses are very hard to keep alive so here he is, the Off The Grid Kid.

 

http://offthegriddotcom.wordpress.com/

Me – Off The Grid as a kid

The first post is always the hardest post to write on a blog.  It’s like introducing yourself to a bunch of people and you can’t look them in the eye. I’m an eye contact person as I believe one on one communication is something this world could use a lot more of.  If people talked, they might be able to understand each other better instead of making blanket judgements based on assumptions.

I’ll give it my best shot.  My name is Darin and I’m the Owner of OffTheGrid.com.  I’m a 40 year old guy with 3 little ones, grew up in the woods of Northern Arizona.  Caught my first fish before I could tie my shoes and tell my boy hunting stories instead of bedtime stories.  I’m  a Patriot and believe that the United States is the greatest nation on earth but I don’t think we’re perfect.  I know we have a great foundation for this country (the constitution) but I’m afraid of what country my children will inherit if we continue down the road we are currently on.  I hope our country gets back on track and focuses on the principles of what makes us great.

I’m a former radio talk show host from Phoenix, Arizona.  In my previous career, I spent most waking hours following the news, watching what was happening and then talking about it to a large audience.  As I researched topics I was going cover on my show, I noticed that many times the mainstream media left out crucial details and portrayed the story in a way that wasn’t entirely accurate by my standards.  Eventually I became aware that in order to get the real story, it was important to look at all angles and formulate my own opinion versus just taking what I was seeing/hearing/reading as fact.

My “awakening” has led me to this adventure.  I hope the preparations I am taking will never be used in an emergency situation.  I hope the food, tools and other equipment I have accumulated will only need to be used when I am enjoying the great outdoors on my own terms.  But, my first priority is my family and I feel it is my responsibility to make sure my wife and kids are in the best possible position should a disaster strike.  They are relying on me and I will not let them down.

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Go there and read. More tomorrow.

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